Textbook in PDF format This unique book develops the subject of analysis organically, by presenting techniques and concepts that apply more generally to functions of various types. By considering these various function types together (real-valued functions of a single or several real variables, vector-valued functions of a single or several real variables, and complex functions), the student can better appreciate what is common to all of them, and what is distinctive to each. For the instructor, this approach also provides for certain pedagogical advantages